7The substance with the lowest known boiling point (4 K) is helium, an atomic element that has two electrons. Hydrogen is a diatomic molecule and also has two electrons, but its boiling point is significantly higher, at 20.28 K. (a) What is the dominant intermolecular force between a pair of helium atoms and a pair of H2 molecules? (b) Why do you think H2 has a higher boiling point?

Q: 2. Predict which substance in each pair has the highest boiling point. Explain. MgCl) or PCI3 CH3BR…

A:

Q: Which of the following molecules exhibits H-bonds?

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A: Alkanes can be defined as the organic compounds containing single bonds between carbon atoms

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A: Boiling point of butane and 2-methylpropane can be explained on the basis of intermolecular forces.

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A: Covalent Bonding:- A covalent is formed by sharing the electrons or the overlapping of the orbitals.…

Q: Which of the following will exhibit dipole-dipole force?   A. CHCl3   B. KNO3   C. CO2   D.…

A: CHCl3 molecule exhibits dipole dipole force.

Q: Among C18, C4, or C8, which bonded phase is the most nonpolar?

A: As the number of carbon atoms increases, the polarity of the compound decreases.

Q: The dipole moment of BrCl is 0.518 D and the distance between atoms is 213.9 pm. What is the percent…

A:

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Q: 3. List the types of intermolecular forces that exist between the following molecules: H Н Н Н Н Н )…

A: Intermolecular acting force depends upon the type of atoms present in structure of molecule.

Q: 3. List the types of intermolecu lar forces present in the following compounds. (a) HF (b) Br2 (c)…

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Q: 2-2. Do you predict apolar bonding and micelle formation to occur when oleic acid in its RCOOH form…

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Q: Identify the most probable intermolecular force of attraction in the following:   CH4…

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Q: The line structures of benzene (Tb = 80 C) and n-pentane (Tp = 36 C) are shown below. Which…

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A: To identify: The number of hydrogen bonds formed by the water molecules in the liquid state.

Q: Which of the following can form hydrogen bonds in a pure sample? A) CH3F B) CH₂F₂ C) HF D) HBr

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Q: 4. Which of the following compounds would be expected to have the lowest melting point? a. AIF3 b.…

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A:

Q: 4. Explain the difference in boiling points seen in the figure to your right. H H-C-H H H H-C-C-C-H…

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Q: 7. Melting points of Br2 and ICl are - 7.2 and 27.2°C, respectively and their electrons are same.…

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Q: Which of the following molecules would allow for hydrogen bonding? C3H8 CH3COCl CF4 HCOOH CH3COBr

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A: Applying concept of confirmational analysis of eclipsed and staggered forms .

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A:

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Q: Please help me answer this

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Q: Which of the following substances displays the greatest dipole-dipole interactions? a. C3H8 b. Kr…

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